MCP Server Directory

diceuear

DiceBear MCP — wraps DiceBear Avatar API v7 (free, no auth)

Live Saudi smart-parking data: spots, EV chargers, stats, and blog. Read-only, no auth.

services.gera/mcp-gera-skills

Search, inspect and recommend AI skill packs from the GeraSkills marketplace. Offline, no auth.

AI Firewall MCP

Multi-agent LLM security layer detecting prompt injection and jailbreaks.

io.github.figuard/figuard-mcp

Pre-flight spend authorization for AI agents. Set a budget, enforce limits, audit every decision.

tarot

Tarot MCP — wraps tarotapi.dev (free, no auth)

emojihub

EmojiHub MCP — wraps EmojiHub API (free, no auth)

musicurainz

MusicBrainz MCP — wraps MusicBrainz Web Service v2 (free, no auth)

Epa Echo

EPA ECHO MCP — wraps EPA ECHO Web Services (free, no auth)

Quotable

Quotable MCP — wraps Quotable API (free, no auth)

Kalshi Prediction Markets

MCP server for Kalshi prediction markets: native RSA-PSS auth, rate limiting, demo/prod safety.

nominatim

Nominatim MCP — wraps OpenStreetMap Nominatim geocoding API (free, no auth)

io.github.snrniranjan/vibelogin-mcp

Add authentication to your app without leaving your IDE.

io.github.joepangallo/mcp-server-security-audit

Scan websites for security vulnerabilities, headers, TLS, and email security.

sec

SEC MCP — SEC EDGAR public APIs (free, no auth)

io.github.atef-ataya/depwire

Dependency graph + 23 MCP tools. Impact analysis, simulation, security, agent coordination

io.github.theYahia/sber-mcp

MCP server for Sberbank API — accounts, statements. Bearer token auth.

Openfda

OpenFDA MCP — wraps the openFDA API (free, no auth required)

io.github.kumoproductions/mcp-cinema4d

MCP server for Cinema 4D — entity CRUD, parameter-level access, batched undo, security controls.

1Claw Vault

HSM-backed vault secrets for AI agents (JIT fetch) plus prompt-injection and threat scanning.

io.github.viridis-security/injection-detector

Formally-verified injection/exfiltration detector for AI agents (MCP-02).

hypernatt-terminal

BTC Decision Terminal for agents. 25 credits/day + intro (~32). HOLD free. Pass $19/mo. x402 $0.01.

io.github.gsepcore/gsep-mcp

AI agent security via MCP: C3 firewall, C4 immune system, C5 action guard, self-evolving prompts.

io.github.Pantheon-Security/notebooklm-mcp-secure

Security-hardened NotebookLM MCP with post-quantum encryption